@article{MAKHILLRJDS20148227798,
    title = {Association Between Milking Practices and Psychrotrophic Bacteria Counts on Bulk Tank
Milk},
    journal = {Research Journal of Dairy Sciences},
    volume = {8},
    number = {2},
    pages = {13-18},
    year = {2014},
    issn = {1993-5277},
    doi = {rjdsci.2014.13.18},
    url = {https://makhillpublications.co/view-article.php?issn=1993-5277&doi=rjdsci.2014.13.18},
    author = {A.I.,J.C.,V.E.,V.R.,A.L.,M.L.,N.B. and},
    keywords = {risk factors,bulk tank milk,Psychrotrophic bacteria,sizing,fundamental},
    abstract = {The objective of this work was to determine
on-farm risk factors for psychrotrophs counts in bulk tank
milk of dairy farms from Argentina. Raw milk from bulk
tank was sampled and Total Psychrotrophics bacteria
Count (TPC), Proteolitic Psychrotrophic bacteria Count
(PPC) and Lipolitic Psychrotrophic bacteria Count (LPC)
were used to assess the bacteriological quality of bulk
tank milk (dependent or outcome variables). At the same
time, a survey was performed asking about infrastructure
conditions, equipment and milking management
(independent variables). Bivariate association proofs and
logistic regression was used to find association between
independent variables and psychrotrophic bacteria counts.
Milk cooled in plate heat exchangers or barrel tanks had
16.39 and 10.52 times more likely to have elevated TPC
and PPC (up to the level established for high quality milk)
than bulk milk cooling tank, respectively. When the
milking man does not wash his hands while milking there
were 7.81 times more likely to have higher PPC. There
was not possible to find association between LPC with
any of the independent variables. The only variable
associated with TPC and PPC was the type of
refrigeration system used at the farm being bulk milk
cooling tanks the best to avoid bacterial growth. The
results of this study highlight the importance of the type
of cooling system used at farm being bulk milk cooling
tank the equipment that generates the best microbiological
quality. The election of the cooling system to be used at
farm and the correct sizing of it are fundamental factors to
guarantee a correct microbiological quality of the milk
obtained.}
    }